U.S., U Thant, UN Peacekeeping Forces, Unit rule, United Empire Loyalists, United Farm Workers of America, United Food and Commercial Workers International Union, United Kingdom, United Methodist Church, United Mineworkers of America, United Nations, United Nations Children's Fund, Scientific United Nations Educational and Cultural Organization, United Nations University, United Negro College Fund, United Parcel Service, United Press International, United Service Organizations, United Society of Believers, United States Air Force, United States Air Force Academy, United States of America…